Port Vue resident Tom Thompson and his wife shop at Save A Lot every week.

“Friday mornings and Friday early afternoon because prices are right and they seem to have what we want,” Thompson said.

The grocery section at Target is next in the ranking at 26, followed by Whole Foods at 15.

Discount grocer Aldi surprised some shoppers by beating out competitors at 11. But that’s no surprise to dedicated Aldi shoppers.

"You come here and get the same product and get it for less. And with the way the economy is today, what are you going to do?” said a woman leaving the Aldi in Forest Hills Friday morning. “You are going to go where you can get it less,” she said.

Topping the list of best grocery chains across the country, Costco at 4 and Trader Joe’s at 2. Trader Joe’s was the highest-ranked chain in Pittsburgh.

"I love their produce -- fresh, reasonably priced and they have great selection of different grains, and sauces and nuts you name it,” said Pat Jones, who says she drives to Pittsburgh from Clairton just to shop at Trader Joe’s.

Wegman’s stores ranked first. Some smaller Pittsburgh area grocers were not included in this ranking of larger chains.

Consumer Reports' best supermarket rankings

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Consumer Reports conducted a survey of more than 27,000 subscribers in its May issue and ranked the country’s 55 largest grocery store chains.

WELL, WE ALL DO IT EVERY WEEK, SOME OF US MAYBE A COUPLE TIMES A WEEK, MAKE THE TRIP TO THE GROCERY STORE, OR STORES. AND WE ALL HAVE OUR FAVORITE PLACE TO SHOP. MY LEAST FAVORITE JOB. BUT A NEW SURVEY BY CONSUMER REPORTS RANKS SOME OF THE MOST POPULAR GROCERY STORES IN OUR AREA. WELL, "PITTSBURGH'S ACTION NEWS 4" REPORTER MATT BELANGER SHOWS US HOW STORES IN OUR AREA STACK UP. Reporter: IT'S A FACT OF LIFE, WE ALL HAVE TO GO TO THE GROCERY STORE, AND THE FOLKS AT "CONSUMER REPORTS" RECENTLY SURVEYED THEIR SUBSCRIBERS AND CAME UP WITH A NEW RANKING OF THE NATION'S LARGEST GROCERY CHAINS. THE SURVEY ASKED SHOPPERS ABOUT THINGS LIKE PRICES, STORE CLEANLINESS AND PRODUCT FRESHNESS. LAST ON THE LIST AT 55 OUT OF 55, WALMART'S GROCERY SECTION. NEXT AT NUMBER 43, GIANT EAGLE STORES. THAT'S FOLLOWED BY SAM'S CLUB AT 35, SAVE A LOT RANKED 28th, ACCORDING TO THIS SURVEY BY "CONSUMER REPORTS." TOM THOMPSON AND HIS WIFE SAY THEY SHOP THERE EVERY WEEK. FRIDAY MORNINGS, FRIDAY EARLY AFTERNOON, BECAUSE PRICES ARE RIGHT AND THEY SEEM TO HAVE WHAT WE WANT. Reporter: THE GROCERY SECTION AT TARGET COMES IN NEXT AT NUMBER 26. THEN AT 15, WHOLE FOODS. NOW THE RANKING THAT'S SURPRISING SOME SHOPPERS, DISCOUNT GROCER ALDI BEATING OUT COMPETITORS, COMING IN AT NUMBER 11. BUT THAT'S NO SURPRISE TO DEDICATED ALDI SHOPPERS LIKE THE JONESES. AND YOU COME HERE AND GET THE SAME PRODUCT, OKAY, AND IT'S LESS. SO, AND WITH THE WAY THE ECONOMY IS TODAY, WHAT ARE YOU GOING TO DO? YOU'RE GOING TO GO WHERE YOU CAN GET IT LESS. Reporter: AND TOPPING THE LIST OF BEST GROCERY CHAINS ACROSS THE COUNTRY, COSTCO AT NUMBER FOUR AND TRADER JOE'S AT NUMBER TWO, THE HIGHEST RANKING CHAIN IN PITTSBURGH. I LOVE THEIR PRODUCE. FRESH, REASONABLY PRICED. THEY HAVE A LOT OF GREAT SELECTION OF SO MANY DIFFERENT GRAINS AND SAUCES AND DIFFERENT THINGS, NUTS, YOU NAME IT. THE NUMBER ONE STORE, BY THE WAY, WAS WEGMANS. KEEP IN MIND, THIS SURVEY WAS ONLY OF THE NATION'S LARGEST GROCERS, SO THAT'S WHY YOUR FAVORITE STORE MAY NOT BE INCLUDED HERE. I'M MATT BELANGER, "PITTSBURGH'S ACTION NEWS 4." ALL RIGHT, WELL, YOU CAN READ THE FULL LIST OF GROCERY STORES AND THEIR SCORES. WE'VE POSTED THE COMPLETE REPORT